Trans International complies with Apples' thermal specification for the Mac Pro Memory. A heat sinks is added to 800MHz DDR2 ECC fully buffered DIMMs (FB-DIMMs) for more efficient cooling. These FB-DIMMs require less airflow to stay cool and allow the internal fans to spin at slower speeds, improving system acoustics. FB-DIMMs made by other manufacturers that do not include a sufficient heat sink may cause the fans to run faster (and louder) or the memory chips to run slower so as not to overheat.
